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One of your teachers who was driving home came upon the accident. She reports to you that emergency vehicles are on the scene, and some students have exited the bus through the emergency exits. Other students and the driver are still inside the bus, and the extent of injuries is not known. The teacher reports some students are currently standing on the road, and many are texting their friends and posting pictures of the bus on social media.

  1. What are the three most important immediate considerations?
  1. What information will be provided to people at the scene and people calling the school? What is the process/procedure for providing this information?
  1. How will you manage the situation and prioritize your response?
 
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Imagine you are the department manager for a medium-sized hotel. You are tasked with monitoring the progress and success of several new hires. Joshua was hired to be a front desk attendant

After about two weeks of his first day, you notice that Joshua, seems to be struggling. He was very outgoing during orientation, but he now seems depressed and. His peers don’t talk to him and he appears disengaged. On one occasion, you noticed he was crying outside the hotel.

1. What should you do first?

2. What would you NOT recommend doing?

3. Why is it so important to help employees at this stage of their tenure with an organization?

4. Could anything have been done during the hiring phase to identify possible issues like what Joshua is dealing with?

 
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solution

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Solve using Arena. and upload the Arena file, or a PDF file of the solution.

Travelers arrive at the main entrance door of an airline terminal according to an exponential interarrival-time distribution with mean 1.6 minutes, with the first arrival at time 0. The travel time from the entrance to the check-in is distributed uniformly between 2 and 3 minutes. At the check-in counter, travelers wait in a single line until one of five agents is available to serve them. The check-in time (in minutes) follows a Weibull distribution with parameters B = 7.78 and a = 3.91. Upon completion of their check-in, they are free to travel to their gates. Create a simulation model, with animation (including the travel time from entrance to check-in), of this system. Run the simulation for a single replication of 16 hours to determine the average time in system, number of passengers completing check-in, and the time-average length of the check-in queue. Put a text box in your model with the numerical results requested.

 
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model 4-1: https://eduhub-lms1.psu.edu.sa/pluginfile.php/100296/mod_folder/content/0/Model%2004-01.doe?forcedownload=1 Solve using Arena. and upload the Arena file, or a PDF file of the solution.

Modify the Exercise 4-1 check-in problem by adding agent breaks. The 16 hours are divided into two 8-hour shifts. Agent breaks are staggered (that is, one agent goes on break, and immediately upon return, the next agent goes on break, until all agents have had their breaks), starting at 90 minutes into each shift. Each agent is given one 15-minute break. Agent lunch breaks (30 minutes) are also staggered, starting 3.5 hours into each shift. The agents are rude and, if they’re busy when break time comes around, they just leave anyway and make the passenger wait until break time is over before finishing up that passenger (since all agents are identical, it’s not necessary for the same agent to finish up that passenger). Compare the results of this model to those of the model without agent breaks. Put a text box in your model with the numerical results requested, and repeat those same results from Exercise 4-1 in this text box for ready comparison; write a few words in your text box to address the question about comparison with Exercise 4-1.

 
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